Safety pistons for sliding doors and windows

Applied to the slide successive frames . Place either doors or windows are . It works as an extra lock on frame giving maximum security since with this inviolable . Can be installed on all windows , old or new, but in all series profiles exist. There is the possibility of placing two pieces on each frame for added security . Usually when we use one holds or affixing become the middle of the frame while using two become one on top and one at the bottom .

The horizontal and vertical position of the base has the axles are designed so you can put it in both single and double sliding aluminum doors .